Study of the microstructure, bonding evolution and mechanical properties of continuously extruded magnesium AZ31 sheet

In the present work, cross-wavy bending at room temperature was carried out to tailor the microstructure and stretch formability of rolled AZ31 sheets. Wavy bending processing generates profuse {10–12} twins and a tilt basal texture. Subsequent recrystallization annealing causes grain coarsening and enhances the intensity of twin-orientation. The combined use of wavy bending and annealing can maintain high tensile ductility and remarkably enhances the stretch formability of rolled AZ31 sheet. It can be mainly attributed to the non-basal texture in the wavy bent sheet which increases the thinning capability during in-plane tension.

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Texture and mechanical properties of strip cast and hot rolled magnesium AZ31

International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde) ◽

10.3139/146.110463 ◽

2011 ◽

Vol 102 (2) ◽

pp. 168-172

Author(s):

Aikaterini Zi ◽

Heinz-Günter Brokmeier ◽

Heinz Palkowski

Keyword(s):

Mechanical Properties ◽

Magnesium Az31 ◽

Strip Cast ◽

Hot Rolled

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Deterioration of mechanical properties for pre-corroded AZ31 sheet in simulated physiological environment

Materials Science and Engineering A ◽

10.1016/j.msea.2013.11.012 ◽

2014 ◽

Vol 593 ◽

pp. 153-162 ◽

Cited By ~ 22

Author(s):

Sichao Fu ◽

Hong Gao ◽

Gang Chen ◽

Lilan Gao ◽

Xu Chen

Keyword(s):

Mechanical Properties ◽

Az31 Sheet

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Microstructure and mechanical properties of magnesium AZ31 sheets produced by extrusion

International Journal of Material Forming ◽

10.1007/s12289-011-1069-0 ◽

2011 ◽

Vol 6 (1) ◽

pp. 187-197 ◽

Cited By ~ 10

Author(s):

Sven Gall ◽

Sören Müller ◽

Walter Reimers

Keyword(s):

Mechanical Properties ◽

Microstructure And Mechanical Properties ◽

Magnesium Az31

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Solidification Microstructure and Mechanical Properties of Hot Rolled and Annealed Mg Sheet Produced through Twin Roll Casting Route

Materials Science Forum ◽

10.4028/www.scientific.net/msf.690.331 ◽

2011 ◽

Vol 690 ◽

pp. 331-334 ◽

Cited By ~ 17

Author(s):

M. Aljarrah ◽

Elhachmi Essadiqi ◽

D.H. Kang ◽

In Ho Jung

Keyword(s):

Mechanical Properties ◽

Fuel Efficiency ◽

Direct Chill ◽

Alloy Sheet ◽

Process Conditions ◽

Twin Roll Casting ◽

Roll Casting ◽

Average Grain Size ◽

Az31 Sheet ◽

Twin Roll

The use of wrought magnesium for automobile structural components is an important component of the mass reduction strategy for automobiles to improve their fuel efficiency. Compared to Direct chill casting, Twin Roll Casting (TRC) allows major reduction of hot rolling steps in the production of Mg sheet due to the thin thickness of the as-cast strip. This TRC route can substantially reduce the time and cost to produce Mg alloy sheet product. In this work, AZ31 magnesium alloy was casted to 5 and 6 mm thick strips under different process conditions. Microstructure of these strips was analyzed using optical microscopy, SEM and EPMA. TRC strip was annealed under two different conditions: 2 hours at 330 and 1 hour at 400°C. It has been found that heat treatment at 400°C for 1 hour reduces centerline segregation significantly. TRC strips were rolled down to 2 mm and annealed at 450°C for 2 minutes. The average grain size was 4-6 µm and mechanical properties were comparable with commercial AZ31 sheet.

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Studi sifat mekanik Magnesium AZ31 hasil proses pengecoran tekan (squeeze casting)

Jurnal Energi Dan Manufaktur ◽

10.24843/jem.2018.v11.i01.p01 ◽

2018 ◽

Vol 11 (1) ◽

pp. 1

Author(s):

Muhammad Iqbal ◽

Irza Sukmana ◽

Yanuar Burhanuddin

Keyword(s):

Mechanical Properties ◽

Squeeze Casting ◽

Chemical Properties ◽

Holding Time ◽

Hydraulic Pressure ◽

Casting Method ◽

Bone Implant ◽

Magnesium Az31 ◽

Temperature Parameter ◽

And Chemical Properties

Magnesium forms 2% in the earth's crust, magnesium is widely used in industry. For example, industrial machinery and electronics, and many developed in the field of biomedicine, especially in the field of orthopedics. Magnesium about 60% is present in the human bones, therefore it has great potential for human body implants. However, it is necessary to increase the mechanical and chemical properties of magnesium in order to be used for bone implant materials. Production process using squeeze casting method. Through this method, Liquid metal is given hydraulic pressure, so the mechanical properties of magnesium were better. In this research use temperature parameter = 450?C, pressure = 300 MPa, duration of press 1 minute and variation of holding time 7 and 9 minutes. Magnesium AZ31 increased compared with samples without treatment. Tensile strength with holding time 7 minutes equal to120.27 MPa, holding time 9 minutes was 128.77 MPa, and samples without treatment of was 94.63 MPa. The magnesium hardness value of AZ31 decreased at 7 minute detention was 39 VHN, compared with the sample without treatment of was 41.8 VHN. And the hardness value increased at holding time 9 minutes equal to 46.2 VHN. However, it should be noted that excessive overheating and holding time may lead to decrease in magnesium mechanical properties of AZ31. Magnesium membentuk 2% pada kerak bumi, magnesium banyak digunakan pada industri. Misalnya, industri mesin dan elektronik, dan banyak dikembangkan pada bidang biomedik, terutama di bidang orthopedi. Magnesium sekitar 60% ada pada tulang manusia, oleh karna itu berpotensi besar untuk implan tubuh manusia. Namun, diperlukan peningkatan sifat mekanik dan kimia magnesium agar dapat digunakan untuk bahan implan tulang. Proses produksi menggunakan metode pengecoran tekan. Melalui metode ini, logam cair diberi tekanan hidrolik, sehingga sifat mekanik magnesium lebih baik. Dalam penelitian ini menggunakan parameter temperatur = 450?C, tekanan = 300 MPa, durasi tekan 1 menit dan variasi holding time 7 dan 9 menit. Magnesium AZ31 meningkat dibandingkan sampel tanpa perlakuan. Kekuatan tarik dengan holding time 7 menit sebesar 120,27 MPa, holding time 9 menit sebesar 128,77 MPa, dan sampel tanpa perlakuan sebesar 94,63 MPa. Nilai kekerasan magnesium AZ31 menurun pada holding time 7 menit sebesar 39 VHN, bila dibandingkan sampel tanpa perlakuan sebesar 41,8 VHN. Dan nilai kekerasan meningkat pada holding time 9 menit sebesar 46,2 VHN. Namun, perlu diperhatikan pemanasan dan holding time yang berlebih (over heat) dapat mengakibatkan penurunan sifat mekanik magnesium AZ31.

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